aldeene's code is a bit random. Why is there code to extract the user name from the database where the userName = txtUser.Text? It will only return what you already have - the entered user name. User is ALWAYS going to equal txtUser.text

All that is really needed is, as you did previously, to select the count of rows in the database where userName = user.Text and password = password.Text. This should provide a count of 1. What error were you getting with that code?

Hi. so this is actually a continuation from another question of mine[Here](https://www.daniweb.com/programming/software-development/threads/506795/dynamically-add-values-into-datagridview-cell-from-listbox-vb2010) but i was advised to start a new thread as the original question …

I have a 2d matrix with dimension (3, n) called A, I want to calculate the normalization and cross product of two arrays (b,z) (see the code please) for each column (for the first column, then the second one and so on).
the function that I created to find the ...

Write a C program that should create a 10 element array of random integers (0 to 9). The program should total all of the numbers in the odd positions of the array and compare them with the total of the numbers in the even positions of the array and indicate ...